MESON Chess Problem Database
Problem Display
PID: 260967 (1n4BK/3p3P/1B1P1R2/N3k1P1/1R2Pp1Q/1N6/2b2nr1/2q1r1b1 w - - 0 1)
Witt, Andreas
Neue Zurcher Zeitung, 2008
#2
12 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Qxf4#
- 1...Qa3
- 2.Qxf4#
- 1...Qa1
- 2.Qxf4#
- 1...Qb1
- 2.Qxf4#
- 1...Qd1
- 2.Qxf4#
- 1...Re3
- 2.Qxf4#
- 1...Rxe4
- 2.Rb5#
- 1...Rxg5
- 2.Qxg5#
- 1...Bxe4
- 2.Bd4#
- 1...Sxe4
- 2.Sc4#
- 1...f3
- 2.Sc4#
- 2.Bd4#
- 2.Rb5#
- 1...Qb2
- Tries
- 1.Sd2?
- threat
- 2.Sf3#
- 2.Sac4#
- 2.Bd4#
- 2.Rb5#
- 2.Qxf4#
- 1...Rxe4
- 2.Sf3#
- 2.Rb5#
- 1...Rxg5
- 2.Bd4#
- 2.Qxg5#
- 2.Qxf4#
- 1...Bxe4
- 2.Bd4#
- 2.Qxf4#
- 1...Sxe4
- 2.Sf3#
- 2.Sdc4#
- 2.Sac4#
- 2.Qxf4#
- 1...Qb2
- 2.Sf3#
- 2.Sac4#
- 2.Qxf4#
- 1...Qa3
- 2.Sac4#
- 2.Bd4#
- 2.Qxf4#
- 1...Qa1
- 2.Sf3#
- 2.Sac4#
- 2.Rb5#
- 2.Qxf4#
- 1...Qb1
- 2.Sf3#
- 2.Sac4#
- 2.Bd4#
- 2.Qxf4#
- 1...Qd1
- 2.Sac4#
- 2.Bd4#
- 2.Rb5#
- 2.Qxf4#
- 1...Re3
- 2.Sac4#
- 2.Bd4#
- 2.Rb5#
- 2.Qxf4#
- 1...Rg3
- 2.Sac4#
- 2.Bd4#
- 2.Rb5#
- 2.Qxf4#
- 1...Rg4
- 2.Sf3#
- 2.Sac4#
- 2.Bd4#
- 2.Rb5#
- 1...Bh2
- 2.Sf3#
- 2.Sac4#
- 2.Bd4#
- 2.Rb5#
- 1...Bb1
- 2.Sf3#
- 2.Bd4#
- 2.Qxf4#
- 1...Bd1
- 2.Bd4#
- 2.Qxf4#
- 1...Bb3
- 2.Sf3#
- 2.Bd4#
- 2.Qxf4#
- 1...Bd3
- 2.Sf3#
- 2.Bd4#
- 2.Qxf4#
- 1...Ba4
- 2.Sf3#
- 2.Bd4#
- 2.Qxf4#
- 1...Sd1
- 2.Sf3#
- 2.Sac4#
- 2.Qxf4#
- 1...Sh1
- 2.Sf3#
- 2.Sac4#
- 2.Qxf4#
- 1...Sd3
- 2.Sf3#
- 2.Sac4#
- 1...Sh3
- 2.Sf3#
- 2.Sac4#
- 1...Sg4
- 2.Sf3#
- 2.Sac4#
- 1...Sa6
- 2.Sf3#
- 2.Sac4#
- 2.Bd4#
- 2.Qxf4#
- 1...Sc6
- 2.Sf3#
- 2.Sac4#
- 2.Rb5#
- 2.Qxf4#
- 1...f3
- 2.Sxf3#
- 2.Sdc4#
- 2.Sac4#
- 2.Bd4#
- 2.Rb5#
- 2.Qf4#
- 1...Qxd2!
- threat
- 1.Sc6+?
- 1...dxc6
- 2.Re6#
- 1...Sxc6!
- 1...dxc6
- 1.Sb7?
- threat
- 2.Rf5#
- 1...Rxe4
- 2.Rb5#
- 1...Rxg5
- 2.Qxg5#
- 1...Bxe4
- 2.Bd4#
- 1...Sxe4!
- threat
- 1.Bc5?
- threat
- 2.Rf5#
- 1...Rxg5
- 2.Qxg5#
- 1...Bxe4
- 2.Bd4#
- 1...Sxe4
- 2.Sc4#
- 1...Rxe4!
- threat
- 1.Bc7?
- threat
- 2.Rf5#
- 1...Rxe4
- 2.Rb5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxe4
- 2.Sc4#
- 1...Bxe4!
- threat
- 1.Rd4?
- threat
- 2.Sc4#
- 2.Rf5#
- 1...Rxe4
- 2.Sc4#
- 2.Rd5#
- 1...Rxg5
- 2.Qxg5#
- 1...Bxb3
- 2.Rf5#
- 1...Sxe4
- 2.Sc4#
- 2.Rd5#
- 1...Bb1
- 2.Rf5#
- 1...Bd1
- 2.Rf5#
- 1...Bd3
- 2.Rf5#
- 1...Bxe4!
- threat
- 1.Sd2?
- Keys
- 1.Qh6!
- threat
- 2.Rf5#
- 1...Rxe4
- 2.Rb5#
- 1...Rxg5
- 2.Qxg5#
- 1...Bxe4
- 2.Bd4#
- 1...Sxe4
- 2.Sc4#
- threat
- 1.Qh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(a);N_GUARD::QAB1(D),XP(g)
- R(b);S_CUTQ(a)::QAB1(D),XP(g)
- R(b);SBLOCK,XP(C)::R(B)
- R(f);OGATE,XP(F)::QAR2(D),XR(f)
- B(d);SBLOCK,XP(C)::B(G)
- S(e);SBLOCK,XP(C)::S(E)
- Tries
- Try
- S(A);
- Threat
- DUALS(5)
- Refutation
- Q(a);XS(A)
- Try
- S(E);CHECK
- Vars
- P(i);XS(E)::R1(I)
- Refutation
- S(j);XS(E)
- Try
- S(E);
- Threat
- R1(I)
- Vars
- R(b);SBLOCK,XP(C)::R(B)
- R(f);OGATE,XP(F)::QAR2(D),XR(f)
- B(d);SBLOCK,XP(C)::B(G)
- Refutation
- S(e);XP(C)
- Try
- B(G);
- Threat
- R1(I)
- Vars
- R(f);OGATE,XP(F)::QAR2(D),XR(f)
- B(d);SBLOCK,XP(C)::B(G)
- S(e);SBLOCK,XP(C)::S(E)
- Refutation
- R(b);XP(C)
- Try
- B(G);
- Threat
- R1(I)
- Vars
- R(b);SBLOCK,XP(C)::R(B)
- R(f);OGATE,XP(F)::QAR2(D),XR(f)
- S(e);SBLOCK,XP(C)::S(E)
- Refutation
- B(d);XP(C)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(f);OGATE,XP(F)::QAR2(D),XR(f)
- B(d);XS(A)::R1(I)
- B(d);::R1(I)
- Refutation
- B(d);XP(C)
- Try
- Actual
- Q(D);
- Threat
- R1(I)
- Vars
- R(b);SBLOCK,XP(C)::R(B)
- R(f);OGATE,XP(F)::QAR2(D),XR(f)
- B(d);SBLOCK,XP(C)::B(G)
- S(e);SBLOCK,XP(C)::S(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).